(Okay, so here is my second attempt)

Tap, tap, tap.
Sounds creep through the house.
Can you see something, over
There hiding in the corner
With shadows cloaking its
Ghastly figure?

Creak, creak, creak.
There’s something in the house.
You hear it lurking, trying
To stalk you silently but
Its creeping gives it away,
Increasing your heart beat.

Beat, beat, beat.
Your heart pounds in your chest.
It is trying to break free, so
That the monster in your
Head doesn’t consume it
With the last of your sanity.

(Still not too pleased, but any constructive criticism you wish to give will be accepted.)
(Edited)